Is there anything linking sleeping after breakfast to weight gain?

No, only if you eat more than you exercise. The timing is not an issue.

What @YARNLADY said. Sleeping doesn’t make you gain weight—actually sleep deprivation can, I think. Stresses the body out, and a stressed body can gain more.—You’d gain weight if you were replacing excercise with sleep and eating more than you usually do. But then it’s a matter of more calories in than out, not of sleeping.

(And when you’re sick, worry about getting better more than about gaining weight while getting better. If you gain anything at all it’ll be minimal and go away when you return to your daily routine.)

Well, seems to me common sense would say that that yes, if you don’t do anything at all after eating you might gain a tiny bit of weight.

While I agree that sleeping in itself does not make you gain weight whereas sleep deprivation can, I disagree that the timing does not matter. Yes it is important to get enough sleep, but I believe in order to gain weight you need to keep moving.. especially after you eat.

Thats why they say not to eat a late dinner because most people stop moving and that food just sits… you have to keep moving.

@mrlaconic said it best.

Isn’t that how sumo wrestlers get fat? Practising sleeping right after eating?