Summary of Significant Accounting Policies - Inventory, warranty and other (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013	Dec. 31, 2013
Inventory [Abstract]
Finished goods	$ 155.5			$ 126.7
Work-in-process	11.2			10.0
Raw materials and supplies	56.0			62.5
Total	222.7			199.2
Valuation and Qualifying Accounts Disclosure [Line Items]
Royalty income, net of royalty expense	4.5		1.0
Movement in Standard Product Warranty Accrual [Roll Forward]
Accrued expenses	16.5			14.9
Other non-current liabilities	11.5			11.2
Revenue Recognition [Abstract]
Allowance for doubtful accounts included in accounts receivable, net	20.5			19.3
Research and Development Expenses {Abstract]
Research and development costs charged to expense	5.9		4.8
Tempur North America [Member] | Mattresses
Warranty Term [Abstract]
Warranty Term	25 years	[1]
Basis on which warranty of product is spread	prorated	[1]
Tempur North America [Member] | Pillows
Warranty Term [Abstract]
Warranty Term	3 years
Tempur International [Member] | Mattresses
Warranty Term [Abstract]
Warranty Term	15 years	[1]
Basis on which warranty of product is spread	prorated	[1]
Tempur International [Member] | Pillows
Warranty Term [Abstract]
Warranty Term	3 years
Sealy [Member] | Mattresses
Warranty Term [Abstract]
Basis on which warranty of product is spread	non-prorated	[2]
Prorated [Member] | Mattresses
Warranty Term [Abstract]
Warranty Term	10 years
Sales Returns [Member]
Sales returns [Abstract]
Beginning balance	28.7
Amounts accrued	29.6
Returns charged to accrual	(29.1)
Ending balance	29.2
Warranty Reserves [Member]
Movement in Standard Product Warranty Accrual [Roll Forward]
Beginning balance	26.1
Amounts accrued	16.5
Warranties charged to accrual	(14.6)
Ending balance	$ 28.0
Minimum [Member] | Sealy [Member] | Mattresses
Warranty Term [Abstract]
Warranty Term	10 years	[2]
Minimum [Member] | Non-prorated [Member] | Sealy [Member] | Mattresses
Warranty Term [Abstract]
Warranty Term	10 years
Maximum [Member] | Sealy [Member] | Mattresses
Warranty Term [Abstract]
Warranty Term	25 years	[2]
Maximum [Member] | Non-prorated [Member] | Sealy [Member] | Mattresses
Warranty Term [Abstract]
Warranty Term	15 years

[1] The last 10 years of warranty period are prorated on a straight-line basis.

[2] Products have various warranty terms, generally non-prorated for the first 10 to 15 years and then prorated for the balance of the warranty term.