We stayed in Gwendra Dairy Cottage, Gerrans Bay, Truro for one week in mid-May. The one bedroom stone cottage was so quaint and was in the most amazing location with stunning sea views. Facilities within the cottage were good BUT what let our stay down big time was the bed/mattress was just so uncomfortable as were the pillows. To say it felt like we were sleeping on a rock was no exaggeration whatsoever. After two nights of no sleep, I phoned The National Trust who arranged for the site caretaker to come over and see what she could do. Well, there was nothing really she could do to solve it, only put on another mattress topper which sadly did absolutely nothing. She changed the pillows but to be honest, there was no difference at all. We were so desperate to get a good night sleep we took ourselves into Truro where we found a Dunelm and went to personal expense of buying ourselves two new pillows. The mattress we could not do anything about other than to take the duvet out of its cover and sandwich it between the mattress and the toppers and found a light blanket in the cottage to cover ourselves with instead of the duvet. Reading other reviews, it would seem there are a high number of complaints about the rock hard mattresses. Being sleep deprived was no exaggeration, we couldn’t wait to get home to sleep in our own bed. Sorry I cannot recommend staying in a NT cottage if our mattress was anything to go by.