My sister has kindly invited us on holiday with her children. So there will be me and DP, 2 DS’s (8 and 16), and her children 5,3 and 11 months and my sister. Her eldest 2 will be sharing a room and she'll have the baby in her room. Me and DP will be in the other room and the last room would be my DS’s but I'm not sure this will be fair on my eldest? My youngest also is autistic but his sleep is good most of the time. They used to share a room from when they were about 9 and 1 until they were 12/13 and 4/5 but my eldest didn't really mind sharing until then we just decided he needed to have his own room.