Let's summarize the puzzle here: we have a master bedroom and two children's rooms. So, a house for 4 people? Classic variant: 2 adults, 2 children. We have a fairly spacious bathroom, which can only be accessed from the bedroom. Therefore, a second bathroom is needed. For the children. It should be large enough to also accommodate 2 loungers, since a sauna is to be installed in the house as well. So take the remaining space from the upper floor as this sauna bathroom, so that two, mind you 2 loungers (pasted to the walls in the drawing) can fit there. Storage of folding loungers. Not dumb. The loungers are thus stuck to the wall because otherwise they would be in the way - at least with this L-construct with a placeholder shower in the niche. To add one more variable to the puzzle, a 6-person sauna is to be installed, there is space for it (because the garage was cleverly placed on the ground floor). The question would be, a) where do the children go to the bathroom during the parents' sauna time? B) if the children sauna with them, where are they allowed to lounge afterwards? C) who gets the remaining seats in the sauna? Visitors? If visitors are there, the question remains: with or without children... and if without, which toilet may they use during the parents' relaxation phase with visitors, and which toilet does the visitor use? Doesn't the visitor find it strange to walk through the whole house to use the children's toilet? But I find the most interesting: who cleans the children's bathroom before the parents' time? And who may use the bathtub in the parents' bathroom when? It would actually be smart if the children bathe in the parents' bathroom while the parents sauna in the children's bathroom. [emoji38][emoji23][emoji6] I also think a sauna is fine, whether in a small bungalow or elsewhere. If that's your hobby, go for it. But then it should also be sensibly placed and not in a leftover room that has the coziness of a slaughterhouse, at least size-wise. I don't want to be moving chairs around there either.