The chart below offers a basic comparison of the various Ergo Hevea models. The Ergo Hevea series features mattresses with entirely natural rubber cores, all four being customizable.

	Sienna	Sogno	Vimala	Dolcezza
Wool Content	1050 grams per sq metre	1050 grams per sq metre	1500 grams per sq metre	1500 grams per sq metre
Natural Rubber	6" | 15.2 cm	6 ½" | 16.5 cm	7 ½" | 19.0 cm	9 ½" | 24.1 cm
Customizable Firmness
Customizable Layers	3" Soft or Firm 3" Soft or Firm (Same across entire bed)	3" Soft or Firm (Individual comfort for each partner)	1 ½" Soft or Firm 3" Soft, Medium or Firm (Individual comfort for each partner)	3" Soft, Medium or Firm 3" Soft, Medium or Firm (Individual comfort for each partner)
Foundation	S501 S200 (Recommended) S3002	S501 S200 (Recommended) S3002	S501 S2001 S300 (Recommended)	S501 S2001 S300 (Recommended)
Residential Delivery	Free	Free	Free	Free

¹ - Will lower cost of your Sleep System at the expense of reduced support.
² - More precise contouring while offering a slightly firmer feel than the S200