abat6294 t1_j2dviq9 wrote
Reply to comment by DonutCola in ELI5: Why does putting one foot out from under the blankets bring so much relief of heat while laying in bed? by SirDuke6
It doesn't rush in, but now there is an interface where cold/warm air can exchange. Having 1 small opening for air to flow is significantly different than having 0.
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