FLSLHS Extend 21.2" to 86.6" Adjustable 4-Piece Under Sofa, Mattress, Bed Sheet Fitted Fastener, Suitable for All Square Mattresses(white)

Great product. I bought the version of these that just cover the corners of the bedding. They all eventually snap off, but I liked the idea.I found these longer ones and they have been great. No need to reattach them and keep the sheet in place.To put on - I suggest putting your sheet on first like normal, then lift your mattress up and place/lean against a wall so you are able to see the whole underneath. At this point decide which formation is best for you.

When I fully extended them so I could use them to keep the straps on my mattress topper from sliding off, I wasn't sure they'd stretch diagonally from corner to corner, but they did and two nights later are still in place. Which is good because it's a bit of a nightmare to get them in place. Took two of us to fit them, one of us lifted the corner of the mattress and the other one clipped them to the topper straps. But it's worth the struggle to keep it in place.

I don't know why I've never thought to buy these before now, I've had the problem of my bed sheet coming off far too easily for years and these straps have changed that completely! I have restless legs and a mattress with one of those "topper" bits on them, a combination of which means that no matter how tightly I pulled and put on sheets previously, after a couple of nights they're ruffled and eventually ping off the corners. The only difficulty I found in using these straps (or sheet braces as I like to call them) was that I'm a single woman lifting a great big heavy double mattress on my own... it's a good workout though! I've got all 4 sheet braces on, 2 going across and 2 going up the mattress, and my sheet isn't even threatening to go anywhere! One bit of advice if you plan on using these - when changing your sheets and unclipped the braces, clip the braces onto something else, like a handle on the mattress, or in my case the mattress protector sheet I use. This will prevent the brace from going PING and disappearing underneath the mattress and save you the job of lifting it ever again!

After years of crumpled sheets found these. Game changer no more crumpled sheets in the morning, better nights sleep. Fits both my super king size mattress and the small double, fully adjustable. Grips the sheet well and they haven’t come off. Only down side is they are not easy to fit and impossible to fit on your own especially with the super king size. You need to really think where you fit them and where the adjuster is in relation to tightening them up once fitted.

My fitted sheet was a bit too big and I needed something to keep it in place. Being a bit dim I didn't realise I had to put the sheet between the 2 'teeth' so it kept slipping. Once I had sorted it out its been brilliant. It would be easier with 2 people but one can manage. Now it is fixed I remove one side and then fix it on to the clean one, then do the other side. I only use 2 across the double bed and it is perfect.

Really didn’t think these would work but was so desperate to try anything to keep my memory foam mattress topper on my bed. I have tried Everything from none slip mats to gorilla tape! ( seriously!) nothing worked. So got these and they fit under my double mattress and hold onto the topper easily! Keeps it in place amazingly!! Didn’t think they would last five mins as clasps looked a bit small and flimsy but wow they do the job!! 👏🏼👏🏼👏🏼👏🏼

Ideal for keeping those fitted sheets in place when you have a memory foam or other mattress topper on your mattressHelps making the bed a breeze as not having to replace the corners of fitted sheets or having them all rucked up every morning a lot less daily stress on my back too

Unfortunately, I had these for less than a month before one of them broke. Not best impressed, would understand if it had been longer, but lasting only a month isn’t good enough.