Dear Mumsnetter. I recently bought Spirit Mumsnet mattress from Dreams only because I trusted Mumnet. I am thoroughly disappointed. I have no time to exchange the mattress before the exchange time finishes and I have no idea what to do. The mattress is comfortable but terribly hot. I expected that Mumsnet pays attention to temperature. Both my husband and I sweat like mad. The room is cool and we have the lightest duvet but the mattress feels like an oven. I am very disappointed and would like to know to whom I can complain. Also disappointed with Dreams. They charge for exchange and only allow it between 30 and 40 days of purchase. We are going away before the 30 days is up... And in any case I don't trust them... Please advise.