We purchased two sets of the Rayon From Bamboo Sheet Sets. The biggest issue is that they are ridiculously large. We bought a King Size TempurPedic adjustable bed. The sheets are soft and cool to sleep on but they are so big that the fitted sheet has to be tucked way under the mattress. It bunches up when the bed is raised. The top sheet is so large that it touches the floor on both sides of the bed. If it were not for the size of the sheets we would give them 5 stars. If you can live with the oversize issue, they are good sheets.