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Summary of Significant Accounting Policies - Changes in Accrued Sales Returns (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Changes in Accrued Sales Returns [Roll Forward]
Beginning balance	$ 28.7tpx_SalesReturnsAccrual	$ 5.1tpx_SalesReturnsAccrual
Amounts accrued	127.4tpx_SalesReturnsAndAllowancesGood	104.8tpx_SalesReturnsAndAllowancesGood
Liabilities assumed as a result of Sealy Acquisition		19.9tpx_LiabilitiesAssumedAsResultOfAcquisition
Returns charged to accrual	(123.8)tpx_SalesReturnsChargedToSalesAllowanceAccrual	(101.1)tpx_SalesReturnsChargedToSalesAllowanceAccrual
Ending balance	$ 32.3tpx_SalesReturnsAccrual	$ 28.7tpx_SalesReturnsAccrual

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- Details

Name:	tpx_ChangesinAccruedSalesReturnsRollForward
Namespace Prefix:	tpx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

The amount of acquisition cost of a business combination allocated to liabilities assumed.

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No definition available.

+ Details

Name:	tpx_LiabilitiesAssumedAsResultOfAcquisition
Namespace Prefix:	tpx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date for estimated product return rights granted to customers.

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No definition available.

+ Details

Name:	tpx_SalesReturnsAccrual
Namespace Prefix:	tpx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Definition

Increase in the accrual for estimated sales returns.

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No definition available.

+ Details

Name:	tpx_SalesReturnsAndAllowancesGood
Namespace Prefix:	tpx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- Definition

Reduction in the accrual for returns charged to sales. The aggregate refunds recognized during an accounting period due to goods returned.

+ References

No definition available.

+ Details

Name:	tpx_SalesReturnsChargedToSalesAllowanceAccrual
Namespace Prefix:	tpx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration