I make room for them inside the house. Coiled or stretched out flat doesn’t matter, just don’t lay anything heavy...like a tank...on them. Padded bag if you have it. Outside the bugs can get to them, ants and cockroaches will nibble on silicone mouthpieces and masks, plus the dry air can dry up lubricants and eventually silicone will harden and yellow. My most expensive gear gets treated the best...the hyundai can stay outside in the sun, but you’d park your ferrari in the living room... :)