References and Resources

De Jonge A, van Diem M, Scheepers P, van der Pal-de Bruin K, Lagro-Janssen A (2007)Increased blood loss in upright birthing positions originates from perineal damage.BJOG;114: 349–355
Di Franco, J,T, Romano, A,M, Keen, R (2007)Care Practice #5: Spontaneous Pushing in Upright or Gravity-Neutral Positions.Journal of Perinatal Education, Vol 16(3), pp 35–38, doi: 10.1624/105812407X217138
Gupta JK, Hofmeyr GJ, Smyth R. (2012)Position in the second stage of labour for women without epidural anaesthesia.The Cochrane Database of Systematic Reviews; May 16,5: CD002006. DOI: 10.1002/14651858.CD002006.pub3
Gizzo S, Di Gangi S, Noventa M, Bacile V, Zambon A, Nardelli GB. (2014)Women’s choice of positions during labour: return to the past or a modern way to give birth? A cohort study in Italy.Biomed Research International
Keen R, DiFranco J, Amis D, Albers L (2004)Position Statement #5Non supine (e.g. upright or side lying positions for birth.Journal of Perinatal Education. Vol 13(2) pp 30 -34
Lavender T and Mlay R. (2006)Position in the second stage of labour for women without epidural anaesthesia: RHL commentary.The WHO Reproductive Health Library; Geneva: World Health Organization.
Lawrence A, Lewis L, Hofmeyr GJ, Styles C.(2013)Maternal positions and mobility during first stage labour.Cochrane Database of Systematic Reviews 2013, Issue 10. Art. No.: CD003934. DOI: 10.1002/14651858.CD003934.pub4.
Nasir A, Noorani K.J, and Korejo R (2007)Childbirth in squatting position.Department of Obstetrics and Gynaecology, Jinnah Postgraduate Medical Centre, Karachi.
 Priddis H,Dahlen H,Schmied V(2012)What are the facilitators, inhibitors, and implications of birth positioning? A review of the literature.Women Birth.Vol25(3):100-6
Read JA, Miller FC, Paul RH (1981)Randomized trial of ambulation versus oxytocin for labour enhancement: a preliminary report. American Jnl Obstetrics & Gynaecology. Mar 15;139(6)669-72
Reitter A, Daviss B-A, Bisits A, et al. (2014)Does pregnancy and/or shifting positions create more room in a woman’s pelvis?Am J Obstet Gynecol 211: 662. e1-9.
Shermer, R. H. and Raines, D. A. (1997),Positioning During the Second Stage of Labor: Moving Back to Basics. Journal of Obstetric, Gynaecologic, & Neonatal Nursing, 26:727–734. doi:10.1111/j.1552-6909.1997.tb02748.x
Postpartum Outcomes in Supine Delivery by Physicians vs Non-supine Delivery by Midwives. Richard R. Terry, DO; Jeanne Westcott, CNM, PhD; Laura O’Shea, RD, CNM, MSN; Frank Kelly, MD, MPHJ Am Osteopath AssociationApril 1, 2006vol. 106 no. 4199-202
Non-Supine (e.g., Upright or Side-Lying) Positions for Birth. Lamaze International Education Council, Keen R, DiFranco J, Amis D, Albers L, Journal of Perinatal Education. 2004 spring; 13(2): 30–34.
Position in the second stage of labour for women without epidural anaesthesia: RHL commentary. Lavender T and Mlay R. The WHO Reproductive Health Library; Geneva: World Health Organization. (last revised: 15 December 2006).
Child birth in squatting position.Ayesha Nasir, K.J. Noorani, Razia Korejo Department of Obstetrics and Gynaecology, Jinnah Postgraduate Medical Centre, Karachi. 2007
Positioning during the second stage of labor: moving back to basics. Shermer RH. Raines DA. JOGNN: Journal of Obstetric, Gynaecologic, and Neonatal Nursing. 1997 Nov-Dec; 26(6): 727-34.
Position in the second stage of labour for women without epidural.Gupta JK, Hofmeyr GJ, Shehmar M. Cochrane Database of Systematic Reviews 2012, Issue 5. Art. No.: CD002006. DOI: 10.1002/14651858.CD002006.pub3.
Lawrence A, Lewis L, Hofmeyr GJ, Dowswell T, Styles C.(2013) Maternal positions and mobility during first stage labour. Cochrane Database of Systematic Reviews Issue 2. Art. No.:CD003934; DOI: 10.1002/14651858.CD003934.pub2.
Read JA, Miller FC, Paul RH.(1981). Randomized trial of ambulation versus oxytocin for labour enhancement: a preliminary report. Am J Obstet Gynecol. Mar 15;139(6)669-72.
Birthsparks Ltd. Independent Survey on Giving Birth & Birth Positions, 2016. Survey on Giving Birth

Technical information

Material: 0.500mm Biocompatible PVC
Two separate inflation valves and chambers to adjust height and to ensure safety
User maximum weight limit is 120 kg
We recommend that the CUB is replaced every three months if it has multiple users
PVC is temperature sensitive. Please top up the air in warm environments if it has been left inflated. Do not inflate unless it has been in room temperature for at least 4 hrs.
PVC can be recycled

Product certification and compliances:

  • Medicines and Healthcare Products Regulatory Agency (MHRA). Registered with MHRA as a class one device
  • CE marked
  • The CUB is made from 0.500mm Bio-compatible PVC that meets all EU
  • The CUB complies with: EN 71-1: Mechanical and physical properties; EN 71-2: Flammability; EN 71-3: Specification for migration of certain elements as required in the European
  • The CUB is manufactured in an ISO 9001:2008 certificated factory (quality control)
  • The CUB meets the 6P Standard for PVC. (Standard for PVC see below)
  • Concerns from Europe and US regarding Phthalates. Phthalates refers to Phthalate Esters / PAEs, which are common addictive to soften plastics especially PVC in past 40 years and 80% of Phthalates are used in plastic products. Based on the application and customer’s safety concerns, there are various tests based on different Phthalates.
  • The common testing is: 3P, 6P, 7P, 15P and 16P.


3P and 6P are based on ECC Directive 2005/84/EEC, CPSIA and AB 1108


 6P refers to 6 types of Phthalates below. Standard: No more than 0.1% or 1000ppm


  • DEHP – Dis-(2-ethylhexyl) Phthalate
  • DBP – Dibutyl Phthalate
  • BBP – Benzylbutyl Phthalate
  • Toys and childcare products that can be placed in the mouth
  • DINP – Diisononyl Phthalate
  • DNOP – Di-n-0ctyl Phthalate
  • DIDP – Diisodecyl Phthalate


We now have an FAQ list that we hope will help you answer some of the more common ones.

1. What is the CUB?

The CUB is an inflatable, class 1 medical device that is designed to be used by women during late pregnancy, labour and birth as a comfort support and positioning aid. This is similar to birth balls, bean bags, birth stools, birth beds, birth pools and cushions or pillows. Its rationale lies in the extensive research base on the clinical advantages for mothers and babies in utero of women adopting non-supine positions during labour and birth. These positions include kneeling, all fours, squatting and upright sitting.

2. Where can the CUB be used?

The CUB is suitable for use in hospital births, birth center births and at home births. The CUB is currently used in many maternity facilities in the UK National health service (NHS) and is sold in 68 countries from Iceland to New Zealand.

3. When can the CUB be used?

The CUB can be used by mothers at home in late pregnancy to promote optimal fetal positioning and to relieve back and/or pelvic girdle pain. (Please see additional Physiotherapy guide for using the CUB). The CUB can be used all through labor.

The CUB can be used during: continuous fetal monitoring, epidural infusion, IV infusion, FSE monitoring, induction (on a hospital bed in a single inflation or in double inflation on the floor) The CUB can be used as a support during birth in a range of positions The CUB can be used in a physiological third stage or with DCC.

After independent evaluation, the CUB has been included in clinical Policy and Procedure Documents from Cork University Hospital in Ireland as the product for use when caring for women with pelvic girdle and lower back pain in labor. We can provide this document on request.

4. What is the CUB made from?

The CUB is manufactured from 0.500mm PVC which is the same material as many hospital chair seats and hospital bed mattresses. PVC is commonly used in healthcare for screening, diagnosis, treatment and care, as well as in building safe healthcare environments. In fact, nearly 30% of all plastic-based medical devices are made of PVC.
PVC is characterized by high biocompatibility. PVC is compatible with virtually all pharmaceutical products in healthcare facilities today. It also has excellent water and chemical resistance. Not only does PVC offer the flexibility necessary for applications such as blood bags, mattresses or intravenous (IV) tubing, but it can also be relied upon for its strength and durability, even under changing temperatures and conditions. These properties are essential to provide convenience in use by healthcare professionals and performance thereby benefiting patient comfort and quality hospital care.

5. Cleaning the CUB

The CUB may, or may not be, used during the birth itself and may or may not come into contact with contamination of body fluids, depending on when it is used and the position the mother adopts for the birth itself.

The decontamination process for the CUB:

We recommend that a clean, disposable incontinence sheet is placed onto the CUB if the mother is sitting on it and has any PV loss that may come into direct contact with the CUB . The CUB should be thoroughly cleaned between users using the process below. Personal protective equipment (PPE) such as gloves and aprons should be worn during the cleaning process.

While the CUB is still inflated: Rinse off all visible surface contamination with a clean, disposable cloth and water; paying attention to the area around the seams and valves and including the base. There should be no visible contamination left. Dry the CUB with a clean disposable cloth, such as household kitchen towel or paper hand towels. Spray or wipe with an antibacterial cleaner, a bleach solution or wipe thoroughly with antibacterial household cleaning wipes.

Allow the CUB to air dry completely before deflating and storing.

The CUB is manufactured from PVC which is the same material as many hospital chair seats and obstetric bed mattresses. A suitable cleaner includes any cleaner currently utilised in the work place that is used for general cleaning of patient beds, commodes or chairs, these include makes of: Antibacterial spray or wipes, Sporicidal spray or wipes and a Hypochlorite 10,000ppm solution.

6. CUB features

-The CUB has a double layer on both the top and bottom sides. This minimises the risk of puncture on the surfaces that have most direct contact.
-The CUB has 2 Separate inflation valves and chambers to prevent the whole product form deflating suddenly due to puncture. This also allows the CUB to be used in a single or double inflation.
-The CUB has a large, stable base that has been ergonomically designed to promote comfort and stability.
-It is made in an ISO 9001:2008 certificated factory (quality control)
-The CUB meets the 6P Standard for PVC
-The CUB has internal vertical reinforcements that makes the product robust by enhancing strength and durability
-The CUB is lightweight and portable

7. Benefits of the CUB

-The CUB supports spontaneous movement and mobility as well as a range of physiologically optimal positions during late pregnancy, labour and birth.
-The CUB is easy to use
-The CUB can be used in any birth environment
-The CUB promotes upright positions for birth which are proven to decrease complication and medical intervention rates during childbirth
-Clinical advantage: The CUB can be used with reduced maternal mobility and in clinically complex births. The CUB is simple to use and provides additional support for more women than a ball or stool can

-Maternal advantage: promotes choice, control and spontaneous position changes while providing a comfortable support
-Product advantage: There is no other product that can be used all through labour and the birth with the range of versatility that the Cub provides.

8. CUB Cover

The cover that comes with the CUB is optional for use. We recommend only using the cover pre-natally or if it is the CUB owner that is using it during labour and birth. To put the cover on: half inflate the top and bottom chambers of the CUB, then place the
cover over, fully inflate both chambers and adjust the cover accordingly.

9. Who buys the CUB?

-Maternity hospitals
-Birth centres
-Doulas, Antenatal class teachers
-Physiotherapists, Yoga teachers
-Individual mothers for their personal use at home and in hospital Charities/organizations (to donate)

10. CUB Safety

The cub® Support is a semi disposable product, but if cared for properly, it should be suitable for multiple uses. However, as an inflatable product, it should not be expected to last indefinitely.
Do not allow anyone to “play” with the cub® it is not a toy
Do not allow more than one person to sit/use cub® at any one time, including partners, staff, and visitors.
The cub® requires regular cleaning & inspection to remain in good condition
When not in use, the cub® should be stored deflated
Keep away from open sources of heat – the CUB is PVC, which can distort & melt
when close to direct heat.
Keep away from potential source of puncture, particularly hard uneven surfaces or sharp objects.
Do not inflate the CUB unless it has been stored at room temperature for at least 4 hours.
The CUB should never be used as child’s toy, child’s seat or in a swimming pool.
The CUB will need periodic ‘top ups’ of air. This is to be expected because of normal stretching in warm environments.



The CUB, designed with you in mind: Safe, Healthy and Smart

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