Mattress

The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee. FIG. 1 is an upper front right perspective view of a mattress in accordance with the present design; FIG. 2 is an upper rear left perspective view thereof; FIG. 3 is a lower front left perspective view thereof; FIG. 4 is a lower rear right perspective view thereof; FIG. 5 is a front orthographic view thereof; FIG. 6 is a rear orthographic view thereof; FIG. 7 is a left orthographic view thereof; FIG. 8 is a right orthographic view thereof; FIG. 9 is a top orthographic view thereof; and FIG. 10 is a bottom orthographic view thereof. FIG. 11 is an upper front right perspective view of a second embodiment of a mattress in accordance with the present design; FIG. 12 is an upper rear left perspective view thereof; FIG. 13 is a lower front left perspective view thereof; FIG. 14 is a lower rear right perspective view thereof; FIG. 15 is a front orthographic view thereof; FIG. 16 is a rear orthographic view thereof; FIG. 17 is a left orthographic view thereof; FIG. 18 is a right orthographic view thereof; FIG. 19 is a top orthographic view thereof; and FIG. 20 is a bottom orthographic view thereof. FIG. 21 is an upper front right perspective view of a third embodiment of a mattress in accordance with the present design; FIG. 22 is an upper rear left perspective view thereof; FIG. 23 is a lower front left perspective view thereof; FIG. 24 is a lower rear right perspective view thereof; FIG. 25 is a front orthographic view thereof; FIG. 26 is a rear orthographic view thereof; FIG. 27 is a left orthographic view thereof; FIG. 28 is a right orthographic view thereof; FIG. 29 is a top orthographic view thereof; and FIG. 30 is a bottom orthographic view thereof. FIG. 31 is an upper front right perspective view of a fourth embodiment of a mattress in accordance with the present design; FIG. 32 is an upper rear left perspective view thereof; FIG. 33 is a lower front left perspective view thereof; FIG. 34 is a lower rear right perspective view thereof; FIG. 35 is a front orthographic view thereof; FIG. 36 is a rear orthographic view thereof; FIG. 37 is a left orthographic view thereof; FIG. 38 is a right orthographic view thereof; FIG. 39 is a top orthographic view thereof; and FIG. 40 is a bottom orthographic view thereof. FIG. 41 is an upper front right perspective view of a fifth embodiment of a mattress in accordance with the present design; FIG. 42 is an upper rear left perspective view thereof; FIG. 43 is a lower front left perspective view thereof; FIG. 44 is a lower rear right perspective view thereof; FIG. 45 is a front orthographic view thereof; FIG. 46 is a rear orthographic view thereof; FIG. 47 is a left orthographic view thereof; FIG. 48 is a right orthographic view thereof; FIG. 49 is a top orthographic view thereof; and FIG. 50 is a bottom orthographic view thereof. FIG. 51 is an upper front right perspective view of a sixth embodiment of a mattress in accordance with the present design; FIG. 52 is an upper rear left perspective view thereof; FIG. 53 is a lower front left perspective view thereof; FIG. 54 is a lower rear right perspective view thereof; FIG. 55 is a front orthographic view thereof; FIG. 56 is a rear orthographic view thereof; FIG. 57 is a left orthographic view thereof; FIG. 58 is a right orthographic view thereof; FIG. 59 is a top orthographic view thereof; and FIG. 60 is a bottom orthographic view thereof. FIG. 61 is an upper front right perspective view of a seventh embodiment of a mattress in accordance with the present design; FIG. 62 is an upper rear left perspective view thereof; FIG. 63 is a lower front left perspective view thereof; FIG. 64 is a lower rear right perspective view thereof; FIG. 65 is a front orthographic view thereof; FIG. 66 is a rear orthographic view thereof; FIG. 67 is a left orthographic view thereof; FIG. 68 is a right orthographic view thereof; FIG. 69 is a top orthographic view thereof; and FIG. 70 is a bottom orthographic view thereof. FIG. 71 is an upper front right perspective view of an eighth embodiment of a mattress in accordance with the present design; FIG. 72 is an upper rear left perspective view thereof; FIG. 73 is a lower front left perspective view thereof; FIG. 74 is a lower rear right perspective view thereof; FIG. 75 is a front orthographic view thereof; FIG. 76 is a rear orthographic view thereof; FIG. 77 is a left orthographic view thereof; FIG. 78 is a right orthographic view thereof; FIG. 79 is a top orthographic view thereof; and FIG. 80 is a bottom orthographic view thereof. FIG. 81 is an upper front right perspective view of a ninth embodiment of a mattress in accordance with the present design; FIG. 82 is an upper rear left perspective view thereof; FIG. 83 is a lower front left perspective view thereof; FIG. 84 is a lower rear right perspective view thereof; FIG. 85 is a front orthographic view thereof; FIG. 86 is a rear orthographic view thereof; FIG. 87 is a left orthographic view thereof; FIG. 88 is a right orthographic view thereof; FIG. 89 is a top orthographic view thereof; and FIG. 90 is a bottom orthographic view thereof. FIG. 91 is an upper front right perspective view of a tenth embodiment of a mattress in accordance with the present design; FIG. 92 is an upper rear left perspective view thereof; FIG. 93 is a lower front left perspective view thereof; FIG. 94 is a lower rear right perspective view thereof; FIG. 95 is a front orthographic view thereof; FIG. 96 is a rear orthographic view thereof; FIG. 97 is a left orthographic view thereof; FIG. 98 is a right orthographic view thereof; FIG. 99 is a top orthographic view thereof; and FIG. 100 is a bottom orthographic view thereof. FIG. 101 is an upper front right perspective view of an eleventh embodiment of a mattress in accordance with the present design; FIG. 102 is an upper rear left perspective view thereof; FIG. 103 is a lower front left perspective view thereof; FIG. 104 is a lower rear right perspective view thereof; FIG. 105 is a front orthographic view thereof; FIG. 106 is a rear orthographic view thereof; FIG. 107 is a left orthographic view thereof; FIG. 108 is a right orthographic view thereof; FIG. 109 is a top orthographic view thereof; and FIG. 110 is a bottom orthographic view thereof. FIG. 111 is an upper front right perspective view of a twelfth embodiment of a mattress in accordance with the present design; FIG. 112 is an upper rear left perspective view thereof; FIG. 113 is a lower front left perspective view thereof; FIG. 114 is a lower rear right perspective view thereof; FIG. 115 is a front orthographic view thereof; FIG. 116 is a rear orthographic view thereof; FIG. 117 is a left orthographic view thereof; FIG. 118 is a right orthographic view thereof; FIG. 119 is a top orthographic view thereof; and, FIG. 120 is a bottom orthographic view thereof.