Ive booked a (really expensive) 4 bed lodge and myself and another mum are taking six teens for a post GCSE treat. The problem is that after booking the seventh member of their tribe said he really wants to come too but theres no space. Will I be able to buy him guest passes for the sat and sunday and then just let him sleep on the sofa on saturday night, or will i get a knock in the middle of the night? His parents dont seem inclined to drive him there and back. I want to be nice, but dread ending up with some sort of nightmare.