These are a life saver! First time using it. Only have to use 1to remedy the problem. The three prongs are helpful.

They are a little trickier to get on but they keep sheets in place. Are very firm, once engaged, and the installation is simple enough. They clamp very well to thin sheets and adjusts very well.

The ‘eyes’ are plastic, but they are sturdy for sheets, blankets & pleather seat covers! I have an adjustable bed so the mattress bends in the middle and raises up like hospital beds do. However, our memory foam mattress is 10”.

Combination memory foam/gel mattress is 11 inches thick. A mattress pad is a necessity because of the mattress’s surface.

Bought this set to complete the set. Got 3 mattress toppers and 1 martha stewart feather bed. If your looking for a feather bed the martha steward one is the best i've ever purchased. It works so well that i felt compelled to write a review.

Quick smoothing with the hands seems to be all it takes to work most of the wrinkles out, rather than having to strip the bed down to the fitted sheet and straighten things up. Keeps sheet tight without wrinkling about with my tossing and turning.

Sheet clip holder is easy to clip on, tighten and take off. Each fitted sheet is different therefore the placement of sheet clips vary.

Wrinkled sheets make it harder for me to sleep. Not long enough to go under the mattress. No easy feat with today’s heavier mattresses.