Simon Ventures Group was one of the investors taking part in a $7.35m series A round for the bespoke mattress producer, which raised $800,000 last year.

US-based advanced mattress producer Helix Sleep has raised $7.35m in a series A round featuring Simon Venture Group, the corporate venturing arm of property developer Simon Property, TechCrunch reported on Monday.

The round also featured Double J Capital, Western Technology Investments, Great Oaks VC and individual angel investors including Jonathan Klein, the co-founder of image provider Getty Images and Jess Itzler, co-founder of business jet provider Marquis Jet.

Helix Sleep provides high-grade mattresses made from latex, high-grade foam and packed…