Hidreamz 4 PCS Bed Sheet Fasteners, Bed Sheet Holders for Keeping Sheets On Mattress, Fits from Twin to Queen to California King

Would be no good with a divan, but with a bed frame to keep them in place, they work very well and are very easy to use - much better than trying to connect straps under a heavy mattress

I bought these for a super king-size devan apsolutely useless. Because there isn't a frame on the bed they just pop out from under the mattress and end up on the bed with the sheet. I did however heat them up and bend them flat so I could attach them to the side of the bed with a screw which worked brilliantly they do hold the sheet well just needed modifying for my bed type.If you have a wooden frame bed then your good to go otherwise buy the 6 point elastic braces type which I ended up getting as couldn't justify buying another 2 packs of these just to modify to have enough for such a big bed.

Absolute rubbish. One of these snapped almost straight away. The “buttons” fall off every time you sit on the bed and have damaged my sheet by causing holes. Really cheap poor quality plastic.

Easy to use and keep the sheets on well, but the bit that holds the sheet can pop off quite easily when knocked

Thought would do the job........ but bent over time. Don’t know if mattress was to thick or what but just didn’t do the job for me. Sure they will work for normal size mattress x

Have a deep mattress no matter how deep my sheets they ping off. The are great and sheet stays on. Finally lol

They do not stay attached very well

Pop off all the time. Not fit for purpose in my opinion.