(a) if one is overweight, losing weight helps
(b) Adjustable bed bases help
(c) check with a sleep medicine provider to check for sleep apnea and cpap machines
(d) new drugs [1]
(e) see whether breathing exercises [2] help
[1] https://news.ycombinator.com/item?id=48242278
[2] https://news.ycombinator.com/item?id=48242278#48243574
https://news.ycombinator.com/item?id=48243666
https://news.ycombinator.com/item?id=48243666