The Size Criteria rules changed from 1st April 2017 to allow a couple a bedroom each where:  

• The DWP is happy that it is unreasonable for one member of a couple# to share a bedroom with their partner because of either partner’s disabilities^, and
• The disabled member of the couple is in receipt of: 

• Middle or high rate care component of Disability Living Allowance, or

• Daily living component Personal Independence Payment, or

• Attendance Allowance at the higher rate*, or

• Armed Forces Independence Payment.

(For more information on these benefits click on PIP, AA, AFIP)

#Non-dependant couples already have a bedroom allocated to each of them so this change will have no impact on non-dependant couples.

^This could be because they would be unreasonably disturbed if they had to sleep in the same bedroom and/or if the disabled member has to sleep in a specific bed that they cannot share with their partner so that there is insufficient room for two single beds in the bedroom.

*The Regulations specifically state that for Attendance Allowance it must be the higher rate (even though they also state middle rate DLA care which is sometimes seen as the equivalent - both can be awarded where the claimant can show they have day or night time needs)