To sleep or not to sleep outside

Lately the kids have had several time that they wanted to sleep outside, but so far they have never made it past ten minutes. The first time the other kids Joshua, Joy, and Jimmie were gone with my Grandparents to spend some time with them. We were putting everyone to bed, and the twins wanted to sleep outside on the trampoline. Patty helped them get all settled, and came back in and said" I bet it will only take them 5 minutes to come back inside." About three minutes later here comes Matthew, and right behind him comes Michael "We want to sleep inside." So we got them and put them in bed. The next time Joshua, Joy, and Jimmie had come home and all of the little kids except Stella wanted to sleep outside. We got them all settled and about ten minutes later Joshua and Joy come in saying" We want to sleep inside, there are mosquito's." So we will see if one night the kids can make it outside all night.
Annie