[jrsdav]

Not to mention how difficult it can be to transition to sleeping with a bed partner, let alone one who is an insomniac.

[benregenspan]

"It can be argued that deriving a conclusive understanding from our preliminary findings is challenging without controlling for confounders (e.g., shared diet, stress exposure, and frequency of intimacy)." Seems like "stress exposure" is doing a lot of work there.