Business and Summary of Significant Accounting Policies - Revenue Recognition - Additional Information (Details)	12 Months Ended
	Jan. 02, 2021
Accounting Policies [Abstract]
Revenue, Performance Obligation, Description of Timing	The deferred revenue and costs related to SleepIQ technology are recognized on a straight-line basis over the product’s estimated life of four years because our inputs are generally expended evenly throughout the performance period.