Guarantor/Non-Guarantor Financial Information - Statements of income and comprehensive income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Supplemental condensed consolidating statements of operations
Net sales									$ 2,464.3	$ 1,402.9	$ 1,417.9
Cost of goods sold									1,449.4	688.3	674.8
Gross profit	272.9	298.7	254.9	188.4	170.6	171.2	166.9	205.9	1,014.9	714.6	743.1
Selling and marketing expenses									522.9	319.1	276.9
General, administrative and other expenses									266.3	147.2	125.7
Equity income in earnings of unconsolidated affiliates									(4.4)	0	0
Royalty income, net of royalty expense									(13.7)	0	0
Operating income	74.1	81.2	44.0	44.5	51.3	63.4	47.5	86.1	243.8	248.3	340.5
Other expense, net:
Third party interest expense, net									110.8	18.8	11.9
Intercompany interest expense (income), net									0	0	0
Interest expense, net									110.8	18.8	11.9
Other (income) expense, net									5.0	0.3	0.2
Total other expense									115.8	19.1	12.1
Income from equity investees									0	0	0
Income before income taxes									128.0	229.2	328.4
Income tax provision									(49.1)	(122.4)	(108.8)
Net income									78.9	106.8	219.6
Net loss attributable to noncontrolling interests									0.3	0	0
Net income attributable to Tempur Sealy International, Inc.	27.5	40.2	(1.6)	12.5	23.5	(2.0)	29.1	56.2	78.6	106.8	219.6
Comprehensive income									72.5	113.9	211.1
Tempur Sealy International, Inc. (Ultimate Parent)
Supplemental condensed consolidating statements of operations
Net sales									0	0	0
Cost of goods sold									0	0	0
Gross profit									0	0	0
Selling and marketing expenses									2.4	2.5	4.1
General, administrative and other expenses									17.1	4.9	14.5
Equity income in earnings of unconsolidated affiliates									0	0	0
Royalty income, net of royalty expense									0	0	0
Operating income									(19.5)	(7.4)	(18.6)
Other expense, net:
Third party interest expense, net									27.5	0	0
Intercompany interest expense (income), net									32.7	31.5	23.3
Interest expense, net									60.2	31.5	23.3
Other (income) expense, net									0	0	0
Total other expense									60.2	31.5	23.3
Income from equity investees									133.4	134.8	250.7
Income before income taxes									53.7	95.9	208.8
Income tax provision									25.2	10.9	10.8
Net income									78.9	106.8	219.6
Net loss attributable to noncontrolling interests									0.3	0	0
Net income attributable to Tempur Sealy International, Inc.									78.6	106.8	219.6
Comprehensive income									72.5	113.9	211.1
Combined Guarantor Subsidiaries
Supplemental condensed consolidating statements of operations
Net sales									1,758.2	947.8	987.9
Cost of goods sold									1,110.5	509.0	504.3
Gross profit									647.7	438.8	483.6
Selling and marketing expenses									358.1	191.9	162.7
General, administrative and other expenses									181.6	96.4	70.2
Equity income in earnings of unconsolidated affiliates									0	0	0
Royalty income, net of royalty expense									(13.7)	0	0
Operating income									121.7	150.5	250.7
Other expense, net:
Third party interest expense, net									81.5	18.3	11.1
Intercompany interest expense (income), net									(34.1)	(31.5)	(23.3)
Interest expense, net									47.4	(13.2)	(12.2)
Other (income) expense, net									(0.9)	0	0.2
Total other expense									46.5	(13.2)	(12.0)
Income from equity investees									93.6	81.0	86.1
Income before income taxes									168.8	244.7	348.8
Income tax provision									(35.4)	(109.9)	(98.1)
Net income									133.4	134.8	250.7
Net loss attributable to noncontrolling interests									0.3	0	0
Net income attributable to Tempur Sealy International, Inc.									133.1	134.8	250.7
Comprehensive income									133.8	136.9	249.4
Combined Non-Guarantor Subsidiaries
Supplemental condensed consolidating statements of operations
Net sales									728.1	481.0	462.2
Cost of goods sold									360.9	205.2	202.7
Gross profit									367.2	275.8	259.5
Selling and marketing expenses									162.4	124.7	110.1
General, administrative and other expenses									67.6	45.9	41.0
Equity income in earnings of unconsolidated affiliates									(4.4)	0	0
Royalty income, net of royalty expense									0	0	0
Operating income									141.6	105.2	108.4
Other expense, net:
Third party interest expense, net									1.8	0.5	0.8
Intercompany interest expense (income), net									1.4	0	0
Interest expense, net									3.2	0.5	0.8
Other (income) expense, net									5.9	0.3	0
Total other expense									9.1	0.8	0.8
Income from equity investees									0	0	0
Income before income taxes									132.5	104.4	107.6
Income tax provision									(38.9)	(23.4)	(21.5)
Net income									93.6	81.0	86.1
Net loss attributable to noncontrolling interests									0	0	0
Net income attributable to Tempur Sealy International, Inc.									93.6	81.0	86.1
Comprehensive income									86.2	86.0	78.9
Eliminations
Supplemental condensed consolidating statements of operations
Net sales									(22.0)	(25.9)	(32.2)
Cost of goods sold									(22.0)	(25.9)	(32.2)
Gross profit									0	0	0
Selling and marketing expenses									0	0	0
General, administrative and other expenses									0	0	0
Equity income in earnings of unconsolidated affiliates									0	0	0
Royalty income, net of royalty expense									0	0	0
Operating income									0	0	0
Other expense, net:
Third party interest expense, net									0	0	0
Intercompany interest expense (income), net									0	0	0
Interest expense, net									0	0	0
Other (income) expense, net									0	0	0
Total other expense									0	0	0
Income from equity investees									(227.0)	(215.8)	(336.8)
Income before income taxes									(227.0)	(215.8)	(336.8)
Income tax provision									0	0	0
Net income									(227.0)	(215.8)	(336.8)
Net loss attributable to noncontrolling interests									(0.3)	0	0
Net income attributable to Tempur Sealy International, Inc.									(226.7)	(215.8)	(336.8)
Comprehensive income									$ (220.0)	$ (222.9)	$ (328.3)