Sleep monitoring device

The ornamental design for a sleep monitoring device, as shown and described.

FIG. 1 is a bottom perspective view of a sleep monitoring device;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof; and,

FIG. 4 is a top perspective view thereof.

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Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Oct 07 2015		Hello Inc.	(assignment on the face of the patent)
Jan 28 2016	SHOOK, ROBERT	HELLO INC	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	037761	0783	pdf
Jan 28 2016	FERNANDEZ, JOAQUIN	HELLO INC	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	037761	0783	pdf
Jan 28 2016	PROUD, JAMES	HELLO INC	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	037761	0783	pdf
Jun 12 2017	HELLO INC	HELLO ASSIGNMENT FOR THE BENEFIT OF CREDITORS , LLC	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	043791	0801	pdf
Aug 18 2017	HELLO ASSIGNMENT FOR THE BENEFIT OF CREDITORS , LLC	Fitbit, Inc	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	043790	0938	pdf

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