Guarantor/Non-Guarantor Financial Information - Schedule of Supplemental Condensed Consolidating Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 65.7	$ 153.9	$ 62.5	$ 81.0
Accounts receivable, net	345.1	379.4
Inventories	196.8	199.2
Prepaid expenses and other current assets	63.9	76.6
Total Current Assets	671.5	809.1
Property, plant and equipment, net	422.2	361.7
Goodwill	722.5	709.4	736.5
Other intangible assets, net	678.7	695.4
Deferred income taxes	22.5	12.2
Other non-current assets	185.2	67.7
Total Assets	2,702.6	2,655.5
Current Liabilities:
Accounts payable	219.3	266.3
Accrued expenses and other current liabilities	250.1	254.0
Income taxes payable	5.8	11.2
Current portion of long-term debt	70.3	181.5
Total Current Liabilities	545.5	713.0
Long-term debt, net	1,817.8	1,273.3
Deferred income taxes	174.6	195.4
Other non-current liabilities	169.3	171.2
Total Liabilities	2,707.2	2,352.9
Redeemable non-controlling interest	7.6	12.4
Total stockholders' (deficit) equity, net of non-controlling interests in subsidiaries	(15.2)	290.2
Non-controlling interest in subsidiaries	3.0	0.0
Total Stockholders' (Deficit) Equity	(12.2)	290.2	202.7	118.6
Total Liabilities, Redeemable Non-Controlling Interest and Stockholders' (Deficit) Equity	2,702.6	2,655.5
Consolidated
Current Assets:
Cash and cash equivalents	65.7	153.9	62.5	81.0
Accounts receivable, net	345.1	379.4
Inventories	196.8	199.2
Income tax receivable	0.0	0.0
Prepaid expenses and other current assets	63.9	76.6
Total Current Assets	671.5	809.1
Property, plant and equipment, net	422.2	361.7
Goodwill	722.5	709.4
Other intangible assets, net	678.7	695.4
Deferred income taxes	22.5	12.2
Other non-current assets	185.2	67.7
Net investment in subsidiaries	0.0	0.0
Due from affiliates	0.0	0.0
Total Assets	2,702.6	2,655.5
Current Liabilities:
Accounts payable	219.3	266.3
Accrued expenses and other current liabilities	250.1	254.0
Income taxes payable	5.8	11.2
Current portion of long-term debt	70.3	181.5
Total Current Liabilities	545.5	713.0
Long-term debt, net	1,817.8	1,273.3
Deferred income taxes	174.6	195.4
Other non-current liabilities	169.3	171.2
Due to affiliates	0.0	0.0
Total Liabilities	2,707.2	2,352.9
Redeemable non-controlling interest	7.6	12.4
Total stockholders' (deficit) equity, net of non-controlling interests in subsidiaries	(15.2)
Non-controlling interest in subsidiaries	3.0
Total Stockholders' (Deficit) Equity	(12.2)	290.2
Total Liabilities, Redeemable Non-Controlling Interest and Stockholders' (Deficit) Equity	2,702.6	2,655.5
Reportable Legal Entities | Tempur Sealy International, Inc. (Ultimate Parent)
Current Assets:
Cash and cash equivalents	0.0	0.0	0.4	0.0
Accounts receivable, net	0.0	0.0
Inventories	0.0	0.0
Income tax receivable	234.2	193.1
Prepaid expenses and other current assets	0.0	0.0
Total Current Assets	234.2	193.1
Property, plant and equipment, net	0.0	0.0
Goodwill	0.0	0.0
Other intangible assets, net	0.0	0.0
Deferred income taxes	20.6	16.0
Other non-current assets	0.0	0.0
Net investment in subsidiaries	2,207.4	1,960.5
Due from affiliates	168.4	548.1
Total Assets	2,630.6	2,717.7
Current Liabilities:
Accounts payable	0.1	0.0
Accrued expenses and other current liabilities	6.8	1.4
Income taxes payable	0.0	0.0
Current portion of long-term debt	0.0	0.0
Total Current Liabilities	6.9	1.4
Long-term debt, net	1,040.4	811.9
Deferred income taxes	0.0	0.0
Other non-current liabilities	0.0	0.0
Due to affiliates	1,587.9	1,601.8
Total Liabilities	2,635.2	2,415.1
Redeemable non-controlling interest	7.6	12.4
Total stockholders' (deficit) equity, net of non-controlling interests in subsidiaries	(15.2)
Non-controlling interest in subsidiaries	3.0
Total Stockholders' (Deficit) Equity	(12.2)	290.2
Total Liabilities, Redeemable Non-Controlling Interest and Stockholders' (Deficit) Equity	2,630.6	2,717.7
Reportable Legal Entities | Combined Guarantor Subsidiaries
Current Assets:
Cash and cash equivalents	7.9	119.7	23.4	28.8
Accounts receivable, net	197.7	231.9
Inventories	117.1	145.3
Income tax receivable	0.0	0.0
Prepaid expenses and other current assets	48.9	45.6
Total Current Assets	371.6	542.5
Property, plant and equipment, net	346.9	300.1
Goodwill	500.2	501.4
Other intangible assets, net	589.8	612.9
Deferred income taxes	0.0	0.0
Other non-current assets	41.7	23.3
Net investment in subsidiaries	77.7	0.0
Due from affiliates	1,874.7	1,655.3
Total Assets	3,802.6	3,635.5
Current Liabilities:
Accounts payable	157.0	212.2
Accrued expenses and other current liabilities	172.6	183.8
Income taxes payable	235.9	196.0
Current portion of long-term debt	34.4	168.7
Total Current Liabilities	599.9	760.7
Long-term debt, net	776.5	461.4
Deferred income taxes	174.9	189.8
Other non-current liabilities	43.3	166.6
Due to affiliates	0.6	96.5
Total Liabilities	1,595.2	1,675.0
Redeemable non-controlling interest	0.0	12.4
Total stockholders' (deficit) equity, net of non-controlling interests in subsidiaries	2,207.4
Non-controlling interest in subsidiaries	0.0
Total Stockholders' (Deficit) Equity	2,207.4	1,948.1
Total Liabilities, Redeemable Non-Controlling Interest and Stockholders' (Deficit) Equity	3,802.6	3,635.5
Reportable Legal Entities | Combined Non-Guarantor Subsidiaries
Current Assets:
Cash and cash equivalents	57.8	34.2	38.7	52.2
Accounts receivable, net	147.4	147.5
Inventories	79.7	53.9
Income tax receivable	0.0	0.0
Prepaid expenses and other current assets	15.0	31.0
Total Current Assets	299.9	266.6
Property, plant and equipment, net	75.3	61.6
Goodwill	222.3	208.0
Other intangible assets, net	88.9	82.5
Deferred income taxes	22.5	12.2
Other non-current assets	143.5	44.4
Net investment in subsidiaries	0.0	0.0
Due from affiliates	14.3	4.8
Total Assets	866.7	680.1
Current Liabilities:
Accounts payable	62.2	54.1
Accrued expenses and other current liabilities	70.7	68.8
Income taxes payable	4.1	8.3
Current portion of long-term debt	35.9	12.8
Total Current Liabilities	172.9	144.0
Long-term debt, net	0.9	0.0
Deferred income taxes	20.3	21.6
Other non-current liabilities	126.0	4.6
Due to affiliates	468.9	604.9
Total Liabilities	789.0	775.1
Redeemable non-controlling interest	7.6	0.0
Total stockholders' (deficit) equity, net of non-controlling interests in subsidiaries	67.1
Non-controlling interest in subsidiaries	3.0
Total Stockholders' (Deficit) Equity	70.1	(95.0)
Total Liabilities, Redeemable Non-Controlling Interest and Stockholders' (Deficit) Equity	866.7	680.1
Eliminations
Current Assets:
Cash and cash equivalents	0.0	0.0	$ 0.0	$ 0.0
Accounts receivable, net	0.0	0.0
Inventories	0.0	0.0
Income tax receivable	(234.2)	(193.1)
Prepaid expenses and other current assets	0.0	0.0
Total Current Assets	(234.2)	(193.1)
Property, plant and equipment, net	0.0	0.0
Goodwill	0.0	0.0
Other intangible assets, net	0.0	0.0
Deferred income taxes	(20.6)	(16.0)
Other non-current assets	0.0	0.0
Net investment in subsidiaries	(2,285.1)	(1,960.5)
Due from affiliates	(2,057.4)	(2,208.2)
Total Assets	(4,597.3)	(4,377.8)
Current Liabilities:
Accounts payable	0.0	0.0
Accrued expenses and other current liabilities	0.0	0.0
Income taxes payable	(234.2)	(193.1)
Current portion of long-term debt	0.0	0.0
Total Current Liabilities	(234.2)	(193.1)
Long-term debt, net	0.0	0.0
Deferred income taxes	(20.6)	(16.0)
Other non-current liabilities	0.0	0.0
Due to affiliates	(2,057.4)	(2,303.2)
Total Liabilities	(2,312.2)	(2,512.3)
Redeemable non-controlling interest	(7.6)	(12.4)
Total stockholders' (deficit) equity, net of non-controlling interests in subsidiaries	(2,274.5)
Non-controlling interest in subsidiaries	(3.0)
Total Stockholders' (Deficit) Equity	(2,277.5)	(1,853.1)
Total Liabilities, Redeemable Non-Controlling Interest and Stockholders' (Deficit) Equity	$ (4,597.3)	$ (4,377.8)