Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 Channel Plant		Jun. 30, 2012	Dec. 31, 2012
Summary of Significant Accounting Policies [Abstract]
Number of Active Plants			4
Number of Previously Closed U S Facilities			8
Business Acquisition [Line Items]
Aggregate principal amount of borrowing related acquisition to fund purchase price	$ 1,900.0		$ 1,900.0
Number of products sales channels			3
Inventory [Abstract]
Finished goods	117.9		117.9			68.5
Work-in-process	11.6		11.6			7.9
Raw materials and supplies	50.1		50.1			16.6
Total	179.6		179.6			93.0
Sales returns [Abstract]
Beginning balance			5.1
Ending balance	27.2		27.2
Movement in Standard Product Warranty Accrual [Roll Forward]
Accrued expenses	11.0		11.0			1.9
Other non-current liabilities	10.2		10.2			2.9
Revenue Recognition [Abstract]
Allowance for doubtful accounts included in accounts receivable, net	20.6		20.6			8.2
Research and Development Expenses {Abstract]
Research and development costs charged to expense	4.6	3.8	9.4		7.2
Subsequent Event [Member] | Term A Facility [Member]
Subsequent Event [Line Items]
Principal borrowing capacity, maximum	536.25		536.25
Reduction in basis points	0.75%		0.75%
Subsequent Event [Member] | Term A Facility [Member] | LIBOR loans [Member]
Subsequent Event [Line Items]
Basis of spread of debt (in hundredths)	2.25%		2.25%
Subsequent Event [Member] | Term A Facility [Member] | Base Rate [Member]
Subsequent Event [Line Items]
Basis of spread of debt (in hundredths)	1.25%		1.25%
Tempur North America [Member] | Mattresses One [Member]
Warranty Term [Abstract]
Warranty Term			25 years	[1]
Basis on which warranty of product is spread			prorated	[1]
Tempur North America [Member] | Mattresses Two [Member]
Warranty Term [Abstract]
Warranty Term			15 years	[1]
Basis on which warranty of product is spread			prorated	[1]
Tempur International [Member] | Pillows One [Member]
Warranty Term [Abstract]
Warranty Term			3 years
Tempur International [Member] | Pillows Two [Member]
Warranty Term [Abstract]
Warranty Term			3 years
Sealy [Member] | Sealy Posturepedic (R) [Member]
Warranty Term [Abstract]
Warranty Term			10 years
Basis on which warranty of product is spread			non-prorated
Sealy [Member] | Bassett (R) [Member]
Warranty Term [Abstract]
Warranty Term			10 years
Basis on which warranty of product is spread			non-prorated
Sealy [Member] | Sealy (R) [Member]
Warranty Term [Abstract]
Warranty Term			10 years
Basis on which warranty of product is spread			non-prorated
Sealy [Member] | 2012 Optimum by Sealy Posturepedic (R) [Member]
Warranty Term [Abstract]
Warranty Term			20 years	[2]
Basis on which warranty of product is spread			limited, prorated	[2]
Sealy [Member] | Stearns and Foster (R) [Member]
Warranty Term [Abstract]
Warranty Term			20 years	[2]
Basis on which warranty of product is spread			prorated	[2]
Sealy [Member] | TrueForm (R) [Member]
Warranty Term [Abstract]
Warranty Term			20 years	[3]
Basis on which warranty of product is spread			prorated	[3]
Sealy [Member] | MirrorForm (R) [Member]
Warranty Term [Abstract]
Warranty Term			20 years	[3]
Basis on which warranty of product is spread			prorated	[3]
Sealy [Member] | SpringFree (R) [Member]
Warranty Term [Abstract]
Warranty Term			20 years	[3]
Basis on which warranty of product is spread			prorated	[3]
Minimum [Member] | Subsequent Event [Member] | Term A Facility [Member] | LIBOR loans [Member]
Subsequent Event [Line Items]
Basis of spread of debt (in hundredths)	1.75%		1.75%
Minimum [Member] | Subsequent Event [Member] | Term A Facility [Member] | Base Rate [Member]
Subsequent Event [Line Items]
Basis of spread of debt (in hundredths)	0.75%		0.75%
Maximum [Member] | Subsequent Event [Member] | Term A Facility [Member] | LIBOR loans [Member]
Subsequent Event [Line Items]
Basis of spread of debt (in hundredths)	2.50%		2.50%
Maximum [Member] | Subsequent Event [Member] | Term A Facility [Member] | Base Rate [Member]
Subsequent Event [Line Items]
Basis of spread of debt (in hundredths)	1.50%		1.50%
Sales Returns [Member]
Sales returns [Abstract]
Beginning balance			5.1
Amounts accrued			44.9
Liabilities assumed as result of acquisition			19.9
Returns charged to accrual			(42.7)
Ending balance	27.2		27.2
Movement in Standard Product Warranty Accrual [Roll Forward]
Liabilities assumed as a result of acquisition			19.9
Warrant [Member]
Sales returns [Abstract]
Liabilities assumed as result of acquisition			16.9
Movement in Standard Product Warranty Accrual [Roll Forward]
Beginning balance			4.8
Amounts accrued			8.2
Liabilities assumed as a result of acquisition			16.9
Warranties charged to accrual			(8.7)
Ending balance	$ 21.2		$ 21.2
Sealy Canada [Member]
Business Acquisition [Line Items]
Percentage of owned subsidiary (in hundredths)	100.00%		100.00%
Comfort Revolution [Member]
Business Acquisition [Line Items]
Percentage of owned subsidiary (in hundredths)	45.00%		45.00%

[1] 10 year period prorated on a straight line basis.

[2] 10 year non-prorated warranty and 10 year prorated warranty on certain components.

[3] 20 year warranty on major components, the last 10 years of which are prorated on a straight-line basis.