are the sides of the mattress cover stretchy expandable material?
1429833
Yes, they are. It fits our olympic queen really well, and the mattress is especially deep.
1429834
Hi! This should fit a mattress up to about 12" deep perfectly. The material is slightly stretchy but not enough to make it fit any deeper than 12".
1429835
Yes, it is. However, my mattress is 17" deep because I have five inches of memory foam on top. In order to keep the cover on, I have had to get elastic with clamps on each end attached to each corner diagonally. I bought them at Bed, Bath, and Beyond and am thinking of getting a longer one for the center from one side to the other. My fitted sheet helps keeps them on because it fits perfectly.
576646
The sides are quite deep..it fits very securely and hugs around and under our mattress. I believe that if you did have a zip on mattress cover it would still fit well. I hope that helps answer your question.
1707293
No it isn't, it is part of the construction of the mattress. But you can purchase removable washable covers to fit over them.
1555691
Yes you can, the cover is similar to a pillow case except the opening is much larger and easier to manage. the cover does not fit real tight and is easy to maneuver over the mattress.
1480460
Yes. It has a lot of stretch. Nice material for speaker grill too. I would use it again for speaker grills
1219133
No, once it is expanded, it is just like a regular mattress. Such a comfortable bed ;-)
1822911
No, it fits like a fitted sheet. It would fit the extra thick mattresses, too. It is holding up very well.
1471785
well you have to choose your size. but if you're asking how deep, I can say there was PLENTY of extra stretchy wrap material to cover your the sides of the mattress
941244
If you mean the flap that goes between the mattress, the answer is yes. I would suggest grommets.
1062845
None, they are %100 Polyester. I'm not very pleased with my purchase for another reason, the Ad said they were for mattresses 16" deep and mine only measured out at 14". However they are very comfy.
200615
My mattress is very thick so I appreciate the stretching. It will probably suit your needs as well. I think it is very well made and should stand up to its claim. I have not had any problems with mine.
263078
Yes, or if you strech it on the sides, it will be move towards the bottom/under the mattress. There is no way to get around that, the top part is still good though, from my experience!
1387155
No. Put them in the corners and I even put them along the sides (I have 8 in total for our king size comforter) you cannot tell they are there. They are padded very well.
1355521
Yes, there is a lot of extra room in the protector and its stretchy too. I have a pillow top mattress and it works just fine with it.
31631
Yes they are stretchable. If your sure you got the right pad for the right model and last time I checked there were only 2 basic diameters. But you could just remove the pad, if intact, and measure it.
1681851
Yes it has sides that make it work just like a fitted sheet. The sides are deep enough for the deep mattresses too.
1298123
It should the sides are larger than most and stretchy I have a 8 inch mattress and the fit well and don't shift.