The Promise of Sleep: A Pioneer in Sleep Medicine Explores the Vital Connection Between Health, Happiness, and a Good Night's Sleep

Industrial chic. This polished men's pendant features a rectangular shape set in stainless steel and black carbon fiber. Approximate length: 24 inches. Approximate drop length: 1-3/4 inches. Approximate drop width: 1 inch.

Royal etiquette. An emerald-cut ruby (2 ct. t.w.) sits front and center amidst two rows of round-cut diamonds (3/8 ct. t.w.). Set in 14k white gold with 14k rose gold corners. Approximate length: 18 inches. Approximate drop: 1 inch.

One bright CREE LED provides a maximum of 60 lumens of bright light.

Depress push button to adjust white brightness levels from 100% down to 6%

Two colors: Variable white and red for night vision

Discrete switching with idependent switches for each light color

Waterproof IPX7 with 2 hours of runtime on a maximum setting using 1 Energizer Max AA Alkaline battery (included)

Adjustable brightness mode from 5 to 100 percent