Bedgasm is a feeling of complete and utter euphoria which peaks when climbing into bed at the end of an 18-hour workday, a long road trip or hours of extremely strenuous physical activity. 

工作了18个小时，长途旅行过后，或者进行了几个小时极度辛苦的体力活动之后，倒在床上时，体会到的完全彻底的幸福愉快的感觉会达到高峰，这就是床铺高潮。

Bedgasm is the excessive enjoyment of lying down in bed esp after a long and exhausting day. 

床铺高潮指的是躺在床上时非常享受的感觉，特别是在漫长而辛苦的一天过后。