Review on YNM Cooling and Silky-Soft 400TC Bamboo Sheet Set - 100% Bamboo Fabric, 4-Piece Queen Size Bedding includes Flat Sheet, Super Deep Pocket Fitted Sheet, and 2 Pillowcases - Blue Grey by Marie Burris

I bought these sheets in September and have been using them for 3 months now. They are made from viscose made from bamboo so they feel snug and not only heavy but also not breathable. They come out of the wash (cold water) and dry (low) with no wrinkles, but after sleeping on them they wrinkle a lot, especially pillowcases. ' and found that it was missing. You feel cool; but they are made of viscose which is not breathable so the heat stays on and to be honest I not only have a wet pillow but often my back too. I would really avoid using these sheets in combination with a memory foam mattress - it would be very frustrating. I washed cotton sheets weekly, they need to be washed twice a week. They are fine by design; but not starry. The fitted sheet has full elasticity, not just the corners, but it barely has 1/2 inch of elasticity and doesn't hold the sheets in place. The sheet rides up on my 16 inch mattress. A fitted sheet already shows signs of wear, which is pretty bad at 3 months. The pillowcases have an extra flap to hide the pillow inside, but in mine they were poorly sewn and needed repairs. The flat sheet is unevenly cut, almost 5 inches longer on one side than the other. It also had to be repaired where the industrial sewing machine appeared to have run out of thread but kept running, so the corner of the label and about 20 inches above it was pierced with a sewing needle but there was no thread. It didn't take much effort to sew up the missing stitch, but quality control should have noticed. These aren't bad sheets, but the new bamboo rayon doesn't make them any better than 600-thread-count cotton, which is actually breathable.